All of the agents were not able to see the MPM. The would just plug in my route and the system wouldn't spit out a MPM so they assumed it was over MPM. After the 3rd HUCA the last agent was able to help. I told him that another agent told me it was a valid booking when I called before, so he asked his supervisor. Oddly enough, the route wasn't valid on YUL-SYD but it was on YYZ-SYD which is a smaller MPM. So I don't understand what is going on right now.